Changing Button text in a Button in IDR_MAINFRAME

Hi all!

I need at runtime to change the text of the first button of the Menu Bar of IDR_MAINFRAME,normally, the "File" Button.

I tried in OnCreate() of CMainFrame, m_wndMenuBar->SetText(0, _T("MyButton")), but texto won´t change.

What is missing?

Thanks,

Jorge

Jorge Teixeira